/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.orgunitprofile.impl;

import org.hisp.dhis.attribute.Attribute;
import org.hisp.dhis.common.IdentifiableObject;
import org.hisp.dhis.dataelement.DataElement;
import org.hisp.dhis.dataset.DataSet;
import org.hisp.dhis.indicator.Indicator;
import org.hisp.dhis.organisationunit.OrganisationUnitGroupSet;
import org.hisp.dhis.orgunitprofile.OrgUnitProfile;
import org.hisp.dhis.orgunitprofile.OrgUnitProfileService;
import org.hisp.dhis.program.ProgramIndicator;
import org.hisp.dhis.system.deletion.DeletionHandler;
import org.springframework.stereotype.Component;

@Component( "org.hisp.dhis.orgunitprofile.impl.OrgUnitProfileDeletionHandler" )
public class OrgUnitProfileDeletionHandler
    extends DeletionHandler
{
    private OrgUnitProfileService orgUnitProfileService;

    public OrgUnitProfileDeletionHandler( OrgUnitProfileService orgUnitProfileService )
    {
        this.orgUnitProfileService = orgUnitProfileService;
    }

    @Override
    protected void register()
    {
        whenDeleting( DataElement.class, this::deleteDataElement );
        whenDeleting( Indicator.class, this::deleteIndicator );
        whenDeleting( DataSet.class, this::deleteDataSet );
        whenDeleting( ProgramIndicator.class, this::deleteProgramIndicator );
        whenDeleting( Attribute.class, this::deleteAttribute );
        whenDeleting( OrganisationUnitGroupSet.class, this::deleteOrganisationUnitGroupSet );
    }

    private void deleteDataElement( DataElement dataElement )
    {
        handleDataItem( dataElement );
    }

    private void deleteIndicator( Indicator indicator )
    {
        handleDataItem( indicator );
    }

    private void deleteDataSet( DataSet dataSet )
    {
        handleDataItem( dataSet );
    }

    private void deleteProgramIndicator( ProgramIndicator programIndicator )
    {
        handleDataItem( programIndicator );
    }

    private void handleDataItem( IdentifiableObject dataItem )
    {
        OrgUnitProfile profile = orgUnitProfileService.getOrgUnitProfile();

        if ( profile.getDataItems().remove( dataItem.getUid() ) )
        {
            orgUnitProfileService.saveOrgUnitProfile( profile );
        }
    }

    private void deleteAttribute( Attribute attribute )
    {
        OrgUnitProfile profile = orgUnitProfileService.getOrgUnitProfile();

        if ( profile.getAttributes().remove( attribute.getUid() ) )
        {
            orgUnitProfileService.saveOrgUnitProfile( profile );
        }
    }

    private void deleteOrganisationUnitGroupSet( OrganisationUnitGroupSet groupSet )
    {
        OrgUnitProfile profile = orgUnitProfileService.getOrgUnitProfile();

        if ( profile.getGroupSets().remove( groupSet.getUid() ) )
        {
            orgUnitProfileService.saveOrgUnitProfile( profile );
        }
    }
}
